More evidence continues to come to light in the Trayvon Martin case.

Today, the results of a DNA test performed on the gun used to shoot and kill the 17 year old in February were revealed, showing that only George Zimmerman‘s DNA was present on the weapon.

According to the Los Angeles Times, none of Trayvon’s DNA was determined to be on the gun:

The tests on the gun and the holster were performed by the Florida Department of Law Enforcement. They found Zimmerman’s DNA on the gun but could not find any of Martin’s. No determination could be made as to whether Martin’s DNA was on the holster.

Zimmerman has acknowledged shooting Martin, but insists he acted in self-defense in the wake of a confrontation that left him injured.

The DNA findings could play a role in the trial, allowing the prosecution to argue against self-defense since it now seems that Martin never touched the weapon. The defense could counter that Zimmerman shot before Martin could get to the gun.

Since the incident, Zimmerman has claimed that he shot Trayvon out of self defense, after the teenager, who Zimmerman says allegedly attacked him, grabbed for his gun, which was in a holster on his waist.

Zimmerman is currently free on bail until the trial for the second-degree murder case begins.